1. The Albigensians were a religious sect that emerged in southern France in the 12th century.
奥尔比松教徒是12世纪在法国南部兴起的一个宗教教派。
2. The Catholic Church launched a crusade against the Albigensians in an attempt to suppress their beliefs.
天主教会发动了一场十字军东征，试图镇压奥尔比松教徒的信仰。